Patents by Inventor Jenq-Thun Li

Jenq-Thun Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • DEVICES AND METHODS FOR DETERMINING PARTICLE CONCENTRATION IN A SAMPLE
    Publication number: 20210222224
    Abstract: A cartridge for determining a concentration of target cells within a sample includes a separation portion and a detection portion. The separation portion includes a first and second surface defining a separation chamber. The separation portion can contain a density medium having a density greater than a density of a first portion of the sample and less than a density of a second portion of the sample (that includes the target cells). The separation chamber can be fluidically coupled to an inlet reservoir such that the sample can pass from the inlet reservoir to the separation chamber during rotation. The detection portion includes a detection surface that forms a boundary of a detection chamber. The detection surface is nonparallel to the first surface such that the target cells impinge on the detection surface when passing into the detection chamber. The detection surface is configured to capture the target cells.
    Type: Application
    Filed: May 9, 2019
    Publication date: July 22, 2021
    Inventors: Jon EPPERSON, Laura FREDRIKSEN, Kyungjin HONG, Jenq-Thun LI, Bhairavi Rajiv PARIKH, Ulrich SCHAFF
  • Coating of hydrophobic surfaces to render them protein resistant while permitting covalent attachment of specific ligands
    Patent number: 5728588
    Abstract: A surface of specific reactivity is formed by adsorbing a modified block polymeric surfactant of the Pluronic-type, i.e., containing pendant poly(ethylene oxide) blocks attached at an end to poly(propylene oxide) center blocks and with specifically reactive groups at the unattached ends of the poly(ethylene oxide) blocks, upon a hydrophobic surface.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: March 17, 1998
    Inventors: Karin Maria Elisabet Caldwell, Per Jan Erik Carlsson, Jenq-Thun Li
  • Coating of hydrophobic surfaces to render them protein resistant while permitting covalent attachment of specific ligands
    Patent number: 5516703
    Abstract: A surface of specific reactivity is formed by adsorbing a modified block polymeric surfactant of the Pluronic-type, i.e., containing pendant poly(ethylene oxide) blocks attached at an end to poly(propylene oxide) center blocks and with specifically reactive groups at the unattached ends of the poly(ethylene oxide) blocks, upon a hydrophobic surface.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: May 14, 1996
    Assignee: The University of Utah
    Inventors: Karin M. E. Caldwell, Per J. E. Carlsson, Jenq-Thun Li